113161389 has 16 divisors (see below), whose sum is σ = 164946240. Its totient is φ = 68437760.

The previous prime is 113161387. The next prime is 113161421. The reversal of 113161389 is 983161311.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 113161389 - 2¹ = 113161387 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113161387) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13429 + ... + 20165.

It is an arithmetic number, because the mean of its divisors is an integer number (10309140).

Almost surely, 2^113161389 is an apocalyptic number.

It is an amenable number.

113161389 is a deficient number, since it is larger than the sum of its proper divisors (51784851).

113161389 is a wasteful number, since it uses less digits than its factorization.

113161389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7260.

The product of its digits is 3888, while the sum is 33.

The square root of 113161389 is about 10637.7342042373. The cubic root of 113161389 is about 483.6888652721.

The spelling of 113161389 in words is "one hundred thirteen million, one hundred sixty-one thousand, three hundred eighty-nine".